WO1996029399A1 - Oligonucleotides antisens pour inhiber le role de l'helicobacter pylori - Google Patents
Oligonucleotides antisens pour inhiber le role de l'helicobacter pylori Download PDFInfo
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- WO1996029399A1 WO1996029399A1 PCT/FR1996/000407 FR9600407W WO9629399A1 WO 1996029399 A1 WO1996029399 A1 WO 1996029399A1 FR 9600407 W FR9600407 W FR 9600407W WO 9629399 A1 WO9629399 A1 WO 9629399A1
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- Prior art keywords
- oligonucleotide according
- oligonucleotide
- modified
- seq
- oligonucleotides
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- 241000590002 Helicobacter pylori Species 0.000 title claims abstract description 15
- 229940037467 helicobacter pylori Drugs 0.000 title claims abstract description 15
- 239000000074 antisense oligonucleotide Substances 0.000 title claims abstract description 13
- 238000012230 antisense oligonucleotides Methods 0.000 title claims abstract description 13
- 108020000948 Antisense Oligonucleotides Proteins 0.000 title abstract description 11
- 230000000694 effects Effects 0.000 title abstract 2
- 230000002401 inhibitory effect Effects 0.000 title description 4
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 12
- 101800000970 Vacuolating cytotoxin Proteins 0.000 claims abstract description 7
- 208000004300 Atrophic Gastritis Diseases 0.000 claims abstract description 6
- 101100476480 Mus musculus S100a8 gene Proteins 0.000 claims abstract description 6
- 208000016644 chronic atrophic gastritis Diseases 0.000 claims abstract description 6
- 101150080234 vacA gene Proteins 0.000 claims abstract description 5
- 101100281119 Brachyspira hyodysenteriae flaA1 gene Proteins 0.000 claims abstract description 4
- 108010040721 Flagellin Proteins 0.000 claims abstract description 4
- 208000008469 Peptic Ulcer Diseases 0.000 claims abstract description 4
- 101100120228 Pseudomonas aeruginosa fliC gene Proteins 0.000 claims abstract description 4
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- 101150071682 flaA gene Proteins 0.000 claims abstract description 4
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/11—DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
- C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/30—Chemical structure
- C12N2310/31—Chemical structure of the backbone
- C12N2310/315—Phosphorothioates
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2310/00—Structure or type of the nucleic acid
- C12N2310/30—Chemical structure
- C12N2310/33—Chemical structure of the base
- C12N2310/337—Chemical structure of the base in alpha-anomeric form
Definitions
- the present invention relates to antisense oligonucleotides which selectively hybridize with one or more genes necessary for the action of Helicobacter pylori (H pylori), pharmaceutical compositions containing them and their use as inhibitors of Helicobacter pylori.
- H pylori Helicobacter pylori
- H pylori is a microaerophilic bacterium, gram negative, colonizing the intercellular junctions and interstices of the human gastric mucosa and establishing a chronic infection with many diverse clinical manifestations such as atrophic gastritis, peptic and duodenal ulcer , gastric atrophy and gastric carcinoma.
- the numerous clinical isolates have made it possible to classify H pylori into two groups based on the presence or absence of vacuolating cytotoxin. In vitro experiments have shown that the virulent nature of the bacterium could be linked to its mobility and the presence of vacuolating cytotoxin.
- cytotoxin is closely related to the presence of an immuno-dominant CagA antigen exposed on the surface.
- inhibiting the mobility of the bacterium and / or the expression of the cytotoxic factor could prevent the manifestation of clinical symptoms.
- One way to inhibit these factors is to use antisense oligonucleotides to block the expression of gene coding for the immuno-dominant antigen associated with cytotoxicity CagA and / or flagellin (flaA and flaB) and / or vacuolating cytotoxin (vacA).
- the antisense strategy is a therapeutic approach aiming at the selective modulation of the expression of genes by a highly selective association of a sequence of nucleotides (oligonucleotides) with its additional sequence on RNA or DNA, and consequently l inhibition of the synthesis of the corresponding protein.
- oligonucleotides complementary to the transcripts are called “antisense” oligonucleotides.
- Oligonucleotides having the same sequence as Transcripts are called “sense” oligonucleotides. Initially, these compounds were logically intended to inhibit the formation of a gene product by the suppression of the corresponding messenger RNA, via the hydrolysis mechanism catalyzed by RNAse H. Soon, it appeared that the mechanism of action of these antisense oligonucleotides was not that simple.
- These oligonucleotides can interact with a number of cellular targets that do not include nucleic acid. These oligonucleotides can interact with the gene, to form triple helix structures and inhibit the formation of transcripts.
- Oligonucleotides can interact with the intron-exon junctions of pre-messenger RNA, thereby interfering with the correct splicing of the transcript. Oligonucleotides can hybridize with messenger RNA in the cytoplasm, forming an RNA-DNA complex, which is rapidly degraded by the RNAse H enzyme, or preventing the ribosome complex from slipping onto the messenger RNA and thereby blocking the translation. Oligonucleotides and, more particularly, modified oligonucleotides, can interact with a number of cellular products such as proteins. These interactions can be sequence-specific (for example: transcription factors) or non-sequence-specific (for example: growth factors).
- Oligonucleotides are very often used as a probe for example for the detection or isolation of polynucleotide and / or as a primer for the transcription and / or replication of target sequences (INNIS NA and its collaborators, PCR Protocols: A guide to methods and applications, 1990, Acadrop Press, Inc. San Diego. California).
- oligonucleotides have been used in studies on Helicobacter pylori (WO-A-93/18150), and more particularly on vacuolating cytotoxin vacA (PHADNIS S. et al.) Infection and immunity, vol 62. No. 5, 1994, pp. 1557-1565) or the CagA antigen (TUMMURU M. and his collaborators.
- the invention relates to antisense oligonucleotides which selectively hybridize with one or more genes necessary for the action of Helicobacter pylori in order to inhibit the role of Helicobacter pylori.
- the invention relates more particularly to antisense oligonucleotides which selectively hybridize with the coding of the genes for the immuno-dominant antigen associated with the cytotoxicity CagA and / or flagellin (flaA and flaB) and / or the vacuolating cytotoxin (vacA).
- the oligonucleotides preferably comprise 8 to 35 units. Very preferably, the oligonucleotide comprises from 10 to 25 units.
- oligonucleotide represents an oligonucleotide consisting of bases, phosphodiester bonds and sugars well known to those skilled in the art.
- oligonucleotides also represents oligonucleotides whose backbone has been modified either over the entire length of the oligonucleotide, or in the 5 ′ and / or 3 ′ position.
- oligonucleotides are sensitive to enzymes, the nucleases which cut them into nucleotides; the oligonucleotides become resistant to nucleases by modification, for example, of the chemical nature of the sugar itself or the phosphate-sugar chain: thus, the phosphodiester chain can be replaced, for example, by a phosphorothioate, phosphorodithioate, methylphosphonate chain , phosphoramidate, phosphoethyltriester, butylamidate, piperazidate or morpholidate.
- oligonucleotide modifications can be made along the entire length of the oligonucleotide or at its 5 'and / or 3' ends, to make the oligonucleotides more resistant to a biological environment.
- the phosphate bonds between the nucleotides can also be replaced by amide bonds (peptide nucleic acids).
- the transmembrane passage of the oligonucleotide can be promoted by making the latter more hydrophobic: this can be obtained, for example, by attaching hydrophobic substituents such as cholesterol or aromatic groups, or a polymer.
- Modified bases can be incorporated partially or over the entire length of the oligonucleotide.
- oligonucleotide also represents a nucleotide whose backbone is modified according to any of the methods described above or of any other method well known to those skilled in the art.
- the subject of the invention is the oligonucleotides of the sequences SEQ ID No. 1 to SEQ ID No. 24 respectively; the oligonucleotides of the sequences SEQ ID No 13-24 are oligonucleotides in which all the phosphodiester bonds have been modified into phosphorothioate. Their complementary sequences or sense oligonucleotides according to the invention may also be used.
- the invention also relates to antisense oligonucleotides comprising at least one fragment of one of the sequences selected from the sequences SEQ ID No. 1 to SEQ ID No. 24.
- the oligonucleotides of the invention can be synthesized by any of the known methods of chemical synthesis of the oligonucleotides. Antisense oligonucleotides are most advantageously prepared using any commercially available automatic nucleic acid synthesizer. One of these methods for synthesizing oligonucleotides is the beta-cyanoethyl phosphoramidate method described by S. L. Beaucage & his collaborators (Tet. Let. 22 (1981), 1859-1862).
- a subject of the invention is also pharmaceutical compositions containing, as active principle, at least one antisense oligonucleotide according to the invention, mixed with a pharmaceutically acceptable excipient and / or carrier, according to the mode of administration chosen.
- the composition can be administered by topical or systemic or local treatment; it can take the form of a liquid for an injection, liposome, sustained-release formulation or in the form of a gel, ointment for local application or in any other acceptable form depending on the mode of administration chosen.
- the invention relates to the use of oligonucleotides according to the invention, for the preparation of medicaments for inhibiting the role of Helicobacter pylori.
- the invention relates more particularly to the use of oligonucleotides according to the invention, for the preparation of medicaments for the treatment of atrophic gastric, peptic or duodenal ulcer, gastric atrophy or gastric carcinoma.
- oligonucleotides The inhibitory role of oligonucleotides is determined by the study of the antibacterial power on strains Hel 'Helicobacter pylori.
- this study includes a study of the bacteriostatic power in an agar medium containing the oligonucleotides.
- Bacteriostasis is defined by the concentration of oligonucleotide leaving none or less than 5 colonies ⁇ 'Helicobacter pylori after 3 days of incubation at 37 ° C in a microaerophilic atmosphere.
- the strains tested are as follows: a reference type ⁇ 'Helicobacter pylori (CIP 10 3995) sensitive to Metronidazole, and a strain C resistant to Metronidazole.
- the culture medium used is Columbia Agar supplemented with 10% horse blood, freshly prepared.
- Each oligonucleotide is incorporated into the medium maintained under supercooling at 45 ° C., so as to obtain final concentrations in the agars of 1, 10 and 20 ⁇ M.
- the agars are poured into sterile 45 mm diameter petri dishes in a volume of 10 ml.
- the agars are dried for 18 hours at laboratory temperature.
- the ic'Helicobacter pylori strains are suspended in Brucella broth and the concentration adjusted to level 3 on the Mac Farland scale.
- the boxes are immediately placed in an oven at 37 ° C in a microaerophilic atmosphere (Generbag-BioMérieux system).
- Reading is carried out after 3 days of incubation.
- Each box showing bacteriostasis is replicated with a sterile velvet disc on an agar box without oligonucleotide.
- the bactericide is judged on the absence of subculture.
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- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Organic Chemistry (AREA)
- Biotechnology (AREA)
- General Engineering & Computer Science (AREA)
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- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Microbiology (AREA)
- Plant Pathology (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU51497/96A AU5149796A (en) | 1995-03-17 | 1996-03-18 | Antisense oligonucleotides for inhibiting helicobacter pylori activity |
| US08/930,371 US5977340A (en) | 1995-03-17 | 1996-03-18 | Antisense oligonucleotides for inhibiting helicobacter pylori activity |
| EP96908152A EP0815217A1 (fr) | 1995-03-17 | 1996-03-18 | Oligonucleotides antisens pour inhiber le role de l'helicobacter pylori |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9505438.3A GB9505438D0 (en) | 1995-03-17 | 1995-03-17 | Antisense oligonucleotides |
| GB9505438.3 | 1995-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1996029399A1 true WO1996029399A1 (fr) | 1996-09-26 |
Family
ID=10771394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR1996/000407 WO1996029399A1 (fr) | 1995-03-17 | 1996-03-18 | Oligonucleotides antisens pour inhiber le role de l'helicobacter pylori |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5977340A (fr) |
| EP (1) | EP0815217A1 (fr) |
| AU (1) | AU5149796A (fr) |
| CA (1) | CA2215449A1 (fr) |
| GB (1) | GB9505438D0 (fr) |
| WO (1) | WO1996029399A1 (fr) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998003533A1 (fr) * | 1996-07-24 | 1998-01-29 | Oligos Etc. And Oligos Therapeutics, Inc. | Oligonucleotides anti-sens utilises comme agents antibacteriens |
| WO1998016658A3 (fr) * | 1996-10-16 | 1998-08-20 | Innogenetics Nv | Sondes, procedes et kits destines a la detection et au typage d'acides nucleiques d'helicobacter pylori dans des echantillons biologiques |
| WO1998032467A3 (fr) * | 1997-01-24 | 1998-09-17 | Antivirals Inc | METHODE ET CONJUGUE DE TRAITEMENT D'INFECTIONS A $i(H. PYLORI) |
| US6211162B1 (en) | 1998-12-30 | 2001-04-03 | Oligos Etc. Inc. | Pulmonary delivery of protonated/acidified nucleic acids |
| US6211349B1 (en) | 1998-12-30 | 2001-04-03 | Oligos Etc., Inc. | Protonated/acidified nucleic acids and methods of use |
| CN1105185C (zh) * | 1998-11-30 | 2003-04-09 | 上海晶莹生物技术有限公司 | 基因表达幽门螺杆菌细胞毒素相关基因a蛋白抗原制备工艺 |
| US6627215B1 (en) | 1998-12-30 | 2003-09-30 | Oligos Etc. Inc. | Devices for improved wound management |
| US7868162B2 (en) | 1998-12-30 | 2011-01-11 | Lakewood-Amedex, Inc. | Antimicrobial and antiviral compounds and methods for their use |
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|---|---|---|---|---|
| US6239116B1 (en) | 1994-07-15 | 2001-05-29 | University Of Iowa Research Foundation | Immunostimulatory nucleic acid molecules |
| US6207646B1 (en) | 1994-07-15 | 2001-03-27 | University Of Iowa Research Foundation | Immunostimulatory nucleic acid molecules |
| ATE393221T1 (de) | 1999-11-29 | 2008-05-15 | Avi Biopharma Inc | Gegen bakterielle 16s und 23s rrnas gerichtete ungeladene antisense oligonukleotide und deren verwendungen |
| AU781676B2 (en) * | 2000-01-04 | 2005-06-02 | Avi Biopharma, Inc. | Antisense antibacterial cell division composition and method |
| SG177000A1 (en) | 2001-08-17 | 2012-01-30 | Coley Pharm Gmbh | Combination motif immune stimulatory oligonucleotides with improved activity |
| CA2502015A1 (fr) | 2002-12-11 | 2004-06-24 | Coley Pharmaceutical Group, Inc. | Acides nucleiques 5'cpg et leurs methodes d'utilisation |
| WO2006085973A2 (fr) | 2004-07-02 | 2006-08-17 | Avi Biopharma, Inc. | Technique et compose antibacterien antisens |
| WO2008064304A2 (fr) * | 2006-11-22 | 2008-05-29 | Trana Discovery, Inc. | Compositions et procédés pour l'identification d'inhibiteurs de la synthèse des protéines |
| EP2201118B1 (fr) * | 2007-09-14 | 2012-04-18 | Trana Discovery | Compositions et procédés pour l'identification d'inhibiteurs d'une infection rétrovirale |
| CA2776044A1 (fr) * | 2008-09-29 | 2010-04-01 | Trana Discovery, Inc. | Procedes de criblage pour identifier des inhibiteurs specifiques de staphylococcus aureus |
| US11020417B2 (en) | 2015-06-04 | 2021-06-01 | Sarepta Therapeutics, Inc | Methods and compounds for treatment of lymphocyte-related diseases and conditions |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993018150A1 (fr) * | 1992-03-02 | 1993-09-16 | Biocine S.P.A. | Proteines d'helicobacter pylori utiles pour des vaccins et des diagnostics |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5527678A (en) * | 1994-10-21 | 1996-06-18 | Vanderbilt University | CagB and CagC genes of helicobacter pylori and related compositions |
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1995
- 1995-03-17 GB GBGB9505438.3A patent/GB9505438D0/en active Pending
-
1996
- 1996-03-18 US US08/930,371 patent/US5977340A/en not_active Expired - Fee Related
- 1996-03-18 WO PCT/FR1996/000407 patent/WO1996029399A1/fr not_active Application Discontinuation
- 1996-03-18 CA CA002215449A patent/CA2215449A1/fr not_active Abandoned
- 1996-03-18 AU AU51497/96A patent/AU5149796A/en not_active Abandoned
- 1996-03-18 EP EP96908152A patent/EP0815217A1/fr not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993018150A1 (fr) * | 1992-03-02 | 1993-09-16 | Biocine S.P.A. | Proteines d'helicobacter pylori utiles pour des vaccins et des diagnostics |
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| PHADNIS, S. ET AL.: "Pathological significance and molecular characterization of the vacuolating toxin gene of Helicobacter pylori.", INFECTION AND IMMUNITY 62 (5). 1994. 1557-1565, XP002008916 * |
| TELFORD, J. ET AL.: "UNRAVELLING THE PATHOGENIC ROLE OF HELICOBACTER PYLORI IN PEPTIC ULCER: POTENTIAL NEW THERAPIES AND VACCINES", TRENDS IN BIOTECHNOLOGY, vol. 12, no. 10, 1 October 1994 (1994-10-01), pages 420 - 426, XP000483385 * |
| TUMMURU, M. ET AL.: "Cloning and expression of a high-molecular mass major antigen of Helicobacter pylori: evidence of linkage to cytotoxin production", INFECTION AND IMMUNITY, vol. 61, no. 5, WASHINGTON US, pages 1799 - 1809, XP002008917 * |
| ZON, G.: "Oligonucleotide analogues as potential chemotherapeutic agents", PHARMACEUTICAL RESEARCH 5 (1988);539-549, XP002008915 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998003533A1 (fr) * | 1996-07-24 | 1998-01-29 | Oligos Etc. And Oligos Therapeutics, Inc. | Oligonucleotides anti-sens utilises comme agents antibacteriens |
| WO1998016658A3 (fr) * | 1996-10-16 | 1998-08-20 | Innogenetics Nv | Sondes, procedes et kits destines a la detection et au typage d'acides nucleiques d'helicobacter pylori dans des echantillons biologiques |
| WO1998032467A3 (fr) * | 1997-01-24 | 1998-09-17 | Antivirals Inc | METHODE ET CONJUGUE DE TRAITEMENT D'INFECTIONS A $i(H. PYLORI) |
| US6124271A (en) * | 1997-01-24 | 2000-09-26 | Avi Biopharma, Inc. | Method and conjugate for treating H. pylori infection |
| CN1105185C (zh) * | 1998-11-30 | 2003-04-09 | 上海晶莹生物技术有限公司 | 基因表达幽门螺杆菌细胞毒素相关基因a蛋白抗原制备工艺 |
| US6211162B1 (en) | 1998-12-30 | 2001-04-03 | Oligos Etc. Inc. | Pulmonary delivery of protonated/acidified nucleic acids |
| US6211349B1 (en) | 1998-12-30 | 2001-04-03 | Oligos Etc., Inc. | Protonated/acidified nucleic acids and methods of use |
| US6627215B1 (en) | 1998-12-30 | 2003-09-30 | Oligos Etc. Inc. | Devices for improved wound management |
| US7868162B2 (en) | 1998-12-30 | 2011-01-11 | Lakewood-Amedex, Inc. | Antimicrobial and antiviral compounds and methods for their use |
| US8435960B2 (en) | 1998-12-30 | 2013-05-07 | Lakewood-Amedex, Inc. | Devices for improved wound management |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0815217A1 (fr) | 1998-01-07 |
| US5977340A (en) | 1999-11-02 |
| CA2215449A1 (fr) | 1996-09-26 |
| GB9505438D0 (en) | 1995-05-03 |
| AU5149796A (en) | 1996-10-08 |
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